47444: Near Repdigit 4744..44

First few terms (base 10): \[[474^*_9]_n=\{43,391,3523,31711,285403,\ldots\}\]

First few terms (base 9): \[\{\text{47},\text{474},\text{4744},\text{47444},\text{474444},\ldots\}\]

General Formula:\[[474^*_9]_n={87\cdot9^{n}-1\over2}\]

Equivalent Patterns: (none)

Table

No table data.